500 Series Equalizers & Filters

MR3eq500 Series Module 3-band parametric EQ with HP filters Originally developed for the Harrison MR3 studio console, the MR3eq stands out as one of Harrison's most popular EQ designs, renowned for its punchy, smooth sound, and powerful sculpting...

The XQP 535A is the newly revised version of the 535, a simple two-band Baxandall EQ with two frequencies per band. Maintaining the same frequency points as before, the A model provides slight increases to the amount of boost and cut, gives the user a...

NSEQ-HFHigh Frequency EQ 500 Rack Module Full Timbral Control, Total Signal IntegrityThousands upon thousands of professional engineers use the discrete JFET Class A NSEQ parametric EQ in mastering, post-production, live sound, mixing, and tracking...

Hi-Lo 500 Tracking Filters Hi-Lo Dynamic Filtering. The Hi-Lo is not just a filter. Trident Audio has created an analog adaptive filtering circuit for the 500 Series format. The Trident Hi-Lo, an adaptive Hi-Cut/Lo-Cut frequency filtering module that...

A-Range 500 The legendary A-Range® equalizer holds a unique place in audio history, with a stunningly musical sound that resulted from its all-discrete transistor circuitry and the use of inductors in the upper and lower mid bands. The A-Range®...

TDxTransient Designer Module The Transient Designer TDx brings level-independent dynamics processing to the world of the 500 Series. On/Bypass With On/Bypass you switch the module on or off (bypass). Signal LED The Sig LED (Sig) indicates whether an...

PEQ4 Single Module Introducing the new PEQ4. Our 4-band Mic-Pre/EQ, with selectable narrow or wide Q, allows you to enhance (boost) and/or minimize (cut) a larger number of selected frequencies. Designed in 2019 for Roger Waters' 48-channel Wunderbar,...

The 73EQL delivers impressive tonal shaping options into a diminutive size, making it the ultimate accompaniment to a BAE 1073MPL 500 series preamplifier or as a stand-alone EQ to complement just any other input source. With a 3-band EQ section and...

_PROMETHEUS is fully analog passive EQ with +24dBu of headroom. It features pultec-style warm sound with a lot of innovative improvements. Its modern approach to design allows instant recall of your classic vibe through very flexible plugin available in...

_HYPERION is fully analog parametric EQ with +24dBu of headroom. It features a lot of innovative improvements that no other processor on the market provides. Its innovative design utilizes 15 VCAs per channel to provide essentially noiseless parameter...

xfilter qube A yummy and magically linked stereo equalizer in the box. With our xfilter 500 included, there is no excuse for bad ingredients like lost frequencies, flat sounds, and flavorless audio soups. Now you have all the great transparency and the...

Artistic EQ The Fredenstein Artistic EQ, a three band equalizer for 500 series racks, provides best-in-class audio performance and flexibility. Open sounding, easy to use, and with our Color technology; the Artistic EQ can handle any program material in...